Abstract
Firstly, the "Metaverse" possesses two distinctive features, "thickness" and "imagination," promising the public a structure of unknown scenarios but with unclear definitions. Attempts to establish an open framework through incompleteness, however, fail to facilitate interactions between humans and the scenario. Due to the dilemma of "digital twinning," the "Metaverse" cannot be realized as "another universe". Hence, the "Metaverse" is, in fact, only a virtual experiential territory created by aggregating technologies that offer immersion and interactivity. Secondly, when artificial intelligence serves as a key supporting technology for the "Metaverse," it presents multifaceted existential risks, manifested as safety, cognitive, and ethical dilemmas. Finally, we propose that the framework for responsible "Metaverse" governance should be constructed through three pathways: collective responsibility, realism, and the co-governance of the virtual and real.